Engine starter



Lad

mime?, to a, stai-tei' im mi: mtsmai minimaal@ h@ drive or man@ missisn'piiou thereof betwean a Stay?,- iiig motel* and die part, suah as theily Wheel? @if iis 50- be sta Lech The #abject si my invention is i@provid@ Sinwi-i :uid a ieii't ai iiiipmved Di i;

i transmitting' ww fifiiely wiwi a anni iinriij/ ".i'ifh. rigid @1' 90 nfives Uf class :uid c' invenhoii is particuiai` Y i -Y gj rlfifingooiiiiwticiii in 5h@ '50mm @if coiled spring is pi'ovicied "Lo -miismithe. lelfiiugij; and also tu Sioi'; up enliiy e ily wheel is brokenioose and, swift a. spring has its limits and in mide? -iw mei-taxing ofthe spring ii positive Gr i'igiii drive ai/'ima ih@ tension limit ofthe.' iig is issue-hed zuid to thereby piment 3g of iii@ spring, mypresent inveiitiziii is employeci.

My mi; on wiiss 1u prox' iig mpi@ and aziicient structure which ispafiiie of ancompiishing iii@ :ibcfve maia/ffl iesuiils and which iscompacb and. hibiiiii h@ 0i' imeiisious of the Simi-(kiwi Eciipse-eiidixdrive so ast@ im interchangeable tiiarewilii iii *che meuniugg 'forsucia. Chiva My improved Sc'uctui Liso pimiides means is?accoii'in'ioriatiug mi cushioning; ,im @ii tim spring omini-ring wheniii@ sam@ unwiiicis. mici also xixeuiis fair @iiiecuaif if! sac-ui'iiipthe driving head or Q-@ifii' i0 ghe dri-ii J shaft which may be the ummiure abili? @mended or couneiriiut mi cociingiy the iieie "oi th@socal-fi sizigia i'eciuctioi type or the, doubi@ duu tion. type.

in the {iV-wings; l is mi eiemtioii pai-i); in scion7 ci: di'iveQmbfidyiiug my invention; l F mi end i amaai. by iii@ iin@ of .4 l;Fifi. pia@ visw 0 a psioii the diive showing Figs. @L @ad 5 iofifs mi.

sion A pe-ispm-iwa ai? i fighi driving sommation i501 the swzm fb.csnveziiezice iii iiiustiaioil and soiiptiou o' my imfeiiw i hav@ sim-imSpecific embodimem in @im ty diive known tim. @ileiiiii wifi-, but itwill ma undersmod 'tm my invnisii is not i0 im iimiizei if@ pswfiui yp-ebut may be embndie in @pas @o uthei struction. sioiefwey While i haveshawn invention :i siuctme *ha Sim f du 'on ypa, iii Wil bs I it isquziiiy appli abi@ to zi. si'iicicuie si ''fhfa daubi@ ifsrlucuiim typ@iilieifi'mg the pzibicuim imhedimm lievi/ii, paver mmm Such tatiug mota?i5 imiicffzid ,structure Shown die, @mi Juie s ,ended mi 5mm. a drivingsim'il @n 'Whicl ie drive @if tiaiismissic'ii i5.; mounz.

ich it is driven. To tha Out-e1 @im i i n their@ is sacuied by means ofhfa sind 9 'La lfhiving; ile-1d in iiiform Ui 50mi-Wham '.teiicifidcoiimor ska-We 8 iiioli which sai@ tud. passfes and. Lim-ice im@ neiiii'ing shui wi 'i it: nain cfyiiiisaf.. @i'ifi i @Mering iocaimi hoi@u. iii such shaft his Ems :am inwzii'iiiy piijecfbim' i Whisk bf i) aithan Semin-i. ci@ u o' mi@ sub# E a, di xiii, im? the, i a" n suc-iisie@ f 'ff ei;

conaitutee; G

stmk The sleeve is, oi; swab i that i ,ami enabled to thug eriipioy ti Dkeys und :it 'the saune time isc-ate iiferii LOG iieetion consists of eeoiie spring 7, 'one end of which is :aimbot-ed. to the stuci 2 and theother to e. etuii 8 which ei'ews into the diiv ing head portion 6 of thescrew shei't. As shown such. portion is integral with the eci'ew shaftbut this is not eesentiel, as it may ne mede separate and detechzicieand be secured. thei'cto.

The seid rigid driving connection consists of e clutch one member ofwhich is the ing 4c eireedy described and the other e coiffeepoiitiiiiglug 9 extending outwardly from and oi'ming e part of the driving; hee 6aof the safe-v1 eheft. iin thenormel. position.

ori the parte es .shown iii Fig. l theseclutcii jews ere not iii Contactbut there c1eaience or cueiiioiiing space 'i0 pi'ovided beu` tweenejjeceiit edges of such clutch vif-Wethepnrpoec of which space xviii beroede epi?eiseiit during the description of opemtion.

Upon the sotevv shaft is mounted the @irivmembei edepteci to cooperatewith e rotatable part o?? the engine to be started. This memiieif ie iiithe term of' e pinion. Il, screw threaded on the seievv she'ftendefiapteci `to mesh with such rotatable pmt, :te for instance with theteeth l2 oi the :Hy Wheel 12.

Deeciibiiig the operation of the .drive and. etating; with the perte inthe iioimei posi4 tion Shown in i, the motor is new started., Wiieeupoothe diiviiig shaft l is ioteted. The povvei' is transmitted from thisshaft to the scievv Sheit througiifthc driving; spring 7, whereupon euchscrew shaft. will be rotated and the pinion 11' Will be eutometieaiiymeshed 'with the 37 wheel. ,After such mesh-- ieg theA 'pinion vvii.permite of the :cotaiiy movement of the sctew eiieit and. the powei'vf/iii be timismitted iiitieiiy through the (iziving epiiiig which willbe peitiaiiy waved, enti elicit :action will continue ontii thisselettive movement o the driving hee-(i oi* sleeve 3 b'fioge two oi? theeaiges of 'the clutch awe togetiiei' -iiito Contact whereupon the torqueabove iiecese 'to wind the epiiiig; ti'iie point wil. thereafter bereee- A im pei' 'ive end rigid meneer thi-oogt clutch. in practico theclutch "awe i .mi t* mede enti ieieted to each other that said rigidconnection will occ-Luet e, predetermined point beiow the elastic limitof the spring, thereby preventing de etmctioii ci: breakage ott thespring but Without iiteve ing with. tix-ve exibiiity of euch spring.rioting witl ii Sete limits. Thus the inguiei deiectioo oi the drivingports ie- `cueiiiorieti the opcion* emi tile become rigiij; connectedettiie P'fope time, tiiei'ef. by i'eiieviiii the spring, The describedtomi of jews eiiowe the 'maximum 'toisicriei oi. enguiei' movement withtile maximum stceiigte. of A editer the engiiie ie etai-ted on. its ovmloewe?? the piiion il ie ciitometiceiy de isis-11,41@

meshefl enti ietiiinel to normal.; oeitioii. Nheii the driving actionthrough 'tie shaft l is, relieved and the pinion is demesheci thetension of the coiled spring will restore the parte to normal positionand owing to the iepidity of this unwinding movement of the Spring, thedriving heed oi: sleeve 3 is liable to be rotated beckWai-diy beyond the:normal point relative to the screw eiwit. "Wete the two jews of theclutch in Contact during' the normal position, this beck ieeii orrebound of the spring Wo'uid he iiebie to @euse the jaw e to Strike theother jew with considerebie :torce and jar. To evoid Stich actionprovide he clemence or cushioning space l0 so that the excess rotation othe Sleeve on such rebound. of spring will be eccommo dated by suchspace and the otiiein jew will not be struck thereby.

Thus, according to this z construction, the driving and driven eiementeere limited in their relative movements in both directions in order toi'eieve the spring of exfiies tot`- sion ectioiiend. also or reboundfiction The clutch. jews 4. and 9 are eo 'constructed enti arranged thate longitudinal yielding movement of the screw shaft is permitted againstthe eompeesingeetion o the spying, in the event tiiet the pinion. teetiemi tig: Wheel teeth should ebut eiioi to emi. The driven elementtiiiisiies e iongitiidiiiei movement which is independent oi" :itsrotary moi/'eiixeiit in both time enti ext-eet, Moreover, theconstruction is such, es to the Sie-eve 3 and the driven heed 6a, thatthere is no possibility oi the spring Wrapping down end' beeomiiigwedged between these two parte even in case the eiafetie limit shouid bei'eeeheei or.' exceeded before the ciutoh jews engege each other.

The advantages of the diiving; beati com struction are that it increasesthe strength of the driving shaft petieuieiiy by per; iiiitting the useof a piuraiity ofemeil keys, together with e shailoiv hoie and not ethrough hole iti the shaft, end also eliminates the iiecessitjyT ot espring mriei to prevent wedgin of the Spring' when Wrapping down.ioieovei, the Stud 2 servee to also .6x the position of the diveessenibly iongitudineiiy and takes the ioiigitudiiie thrust of the screwshaftvvheii the pinion teeth and. the iy Wheel teeth abut end. to emi.

As shown in Fic. 1. i provide specie?. means for' anchoring the freeends oi' eyes of the coiled spring to the driving heads' 3 'and f5ivespectiveiy. A5 shown, the extieme eiid of eech eve is bent oi' swege.outvvarfiiy :it Ka eo es to enter e receee 6 in the heed of the screwstatt mici e ieeees 3" iii venting rotetion en. loosening et ties@ llllli

neiieie .etude Tine lower edges of these eyes are outwardly bent undeweged es at 7" in order to enter the depression 6C of the liead of thescrew shaft and. e depression 3c in the drivin G' lieed 3, respectively.Thus the eyes erleclred securely on opposite sides when the stede' erescrewed in 'piece end ere prevented from. any rotation or twisting.

l. A. drive lor engine starters ineludiiie e rotatable driving elementend e rotate le driven element oving on their adjacent endscorresponding elutch memloers adapted to operatively engage eecli otherby Vper- Knitting longitudinal movement of such elements which movementis independent of their rotery movement, end a, coiled spring connectedet its ends to seid elements respectively, seid elements heving elimited relative rotary movement, one with respect lo 'the other endtlie clutch members being normally separated longitudinally to permit cie yielding pressure and sepereted. :ingulerly to provide cushioningspecs oetvveee there.

A drive 'for en lne starters including a rotatable drivinge ment and erotatable driven element, seid elementsheving cooperotin clutch jawsWhieli. ere ermitted limite relative movement one vviti respect to theother both in a roteriel direction and in e longitudinal direction, andadapted to operatively lengage each other 'for direct driving when oneelement is partially ro teted in one direction relative to the otherelement, and e coiled spring connected et its o'npoeite ends to the twoelemente respectively, seid jews being normally seperated longitudinallyto permit oilw e yielding' pressure end seperated singularly to 'pro--ride e cushioning space between tlieni9 end seid spring being arrangedto .resist said angular end longitudinal movements of elements.,

3. @i drive for engine stertere ineluding o rclsetable driving elementend e rote-aeole drieen element having on their edgocent ends coecenigclutch members end Hoving e longitudinal movement one toward the otherto permit oi' e yieldingp pressure, ond e coiled spring connected itsende to Seid elemente respectively, seid elements lievieg e relativerotery movement end eluteli members beleg normally Regidor ly to providee cushioning eprice between there, tlie longitudinal nfiovement of seiddriven element being independent. el ite rotary movement in time endextent.

le An engine :starter for transmitting coiled. spring connected et itsopposite-ends' to the two elements.

5. Starting mechanism eomprieing o drive shaft, e, driven slieft, esource ol` power connected to seid drive shaft oon meeting ineensbetween seid sheits adopted to build up the torque on the driven hefterid ineens for positively connecting sei shafts when the torque liosbeen built upA to e predetermined degree.

Starting; mechanism comprising e. eluteli. member, e drive sha-ftoperatively een- ,neet/ed thereto, e second clutch member ,edepted to beyieldingly engaged. by seid .first elm/oli roeriiloem e driven slielteenn nested to seid seoond clutch. member, ineens dependent upon tlietorque built up in the driven slieft for positively eonneeting seidliret clnteli member to. seid driver; shaft.

